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12303225 = 3352111657
BaseRepresentation
bin101110111011…
…101101111001
3212011001212000
4232323231321
511122200400
61115411213
7206401314
oct56735571
925131760
1012303225
116a43660
124153b09
13271a01c
1418c397b
151130600
hexbbbb79

12303225 has 48 divisors (see below), whose sum is σ = 24671040. Its totient is φ = 5961600.

The previous prime is 12303217. The next prime is 12303227. The reversal of 12303225 is 52230321.

It is not a de Polignac number, because 12303225 - 23 = 12303217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12303198 and 12303207.

It is not an unprimeable number, because it can be changed into a prime (12303227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6597 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (513980).

Almost surely, 212303225 is an apocalyptic number.

12303225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12303225 is an abundant number, since it is smaller than the sum of its proper divisors (12367815).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12303225 is a wasteful number, since it uses less digits than its factorization.

12303225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12303225 is about 3507.5953301372. The cubic root of 12303225 is about 230.8551968181.

Adding to 12303225 its reverse (52230321), we get a palindrome (64533546).

The spelling of 12303225 in words is "twelve million, three hundred three thousand, two hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 55 75 99 135 165 225 275 297 495 675 825 1485 1657 2475 4971 7425 8285 14913 18227 24855 41425 44739 54681 74565 91135 124275 164043 223695 273405 372825 455675 492129 820215 1118475 1367025 2460645 4101075 12303225